title: Association of the FTO rs9939609 single nucleotide polymorphism with C-reactive protein levels.
abstract: Adipose tissue is a key factor determining C-reactive protein (CRP) plasma levels. Variation at the fat-mass and obesity-associated (FTO) gene locus has been reported to be associated with increased body fat. We investigated whether the FTO rs9939609 T>A single nucleotide polymorphism might alter CRP levels in a population-based sample of 2,415 participants from a large prospective cohort study. Genotype/phenotype relationships were studied by linear trend analysis stratified by sex. The rs9939609 A-allele was significantly associated with CRP levels in both genders (men, +21%, P = 0.002; women, +14%, P = 0.01 per A-allele). The association was attenuated, but remained statistically significant after additional adjustment for BMI, waist-to-hip ratio, and other potential confounding factors (men, +14%, P = 0.03; women, +12%, P = 0.02; per A-allele). Similar results were obtained when subjects with CRP levels higher then 10 mg/l were excluded. Our data provide preliminary evidence that the FTO rs9939609 T>A polymorphism contributes to variation in plasma CRP levels independently of obesity indices.
authors.affiliation: Department of Epidemiology, German Institute of Human Nutrition Potsdam-Rehbrücke, Nuthetal, Germany. fisher@dife.de
authors.forename: Eva
authors.initials: E
authors.lastname: Fisher
authors.forename: Matthias B
authors.initials: MB
authors.lastname: Schulze
authors.forename: Norbert
authors.initials: N
authors.lastname: Stefan
authors.forename: Hans-Ulrich
authors.initials: HU
authors.lastname: Häring
authors.forename: Frank
authors.initials: F
authors.lastname: Döring
authors.forename: Hans-Georg
authors.initials: HG
authors.lastname: Joost
authors.forename: Hadi
authors.initials: H
authors.lastname: Al-Hasani
authors.forename: Heiner
authors.initials: H
authors.lastname: Boeing
authors.forename: Tobias
authors.initials: T
authors.lastname: Pischon
mesh_terms: D000328:Adult; D000483:Alleles; D000071516:Alpha-Ketoglutarate-Dependent Dioxygenase FTO; D002097:C-Reactive Protein / Q000378:metabolism*; D015331:Cohort Studies; D005260:Female; D005838:Genotype; D006801:Humans; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000097:blood* / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D011446:Prospective Studies; D011506:Proteins / Q000235:genetics*
chemical_list: D011506:Proteins; D002097:C-Reactive Protein; D000071516:Alpha-Ketoglutarate-Dependent Dioxygenase FTO; C526492:FTO protein, human